XML 103 R75.htm IDEA: XBRL DOCUMENT
v3.20.4

Joint Arrangements (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Disclosure of interests in other entities [Abstract] |
Disclosure of interests in joint arrangements | Joint arrangements at Dec. 31, 2020, included the following:
Joint operations | Segment | Ownership (per cent) | Description
Sheerness | Alberta Thermal | 50 | Dual-fuel facility in Alberta, of which TA Cogen has a 50 per cent interest, operated by Heartland Generation Ltd., an affiliate of Energy Capital Partners
Pioneer Pipeline | Alberta Thermal | 50 | Natural gas pipeline in Alberta operated by TMI
Goldfields Power | Australian Gas | 50 | Gas-fired facility in Australia operated by TransAlta
Fort Saskatchewan | North American Gas | 60 | Cogeneration facility in Alberta, of which TA Cogen has a 60 per cent interest, operated by TransAlta
Fortescue River Gas Pipeline | Australian Gas | 43 | Natural gas pipeline in Western Australia, operated by DBP Development Group
McBride Lake | Wind and Solar | 50 | Wind generation facility in Alberta operated by TransAlta
Soderglen | Wind and Solar | 50 | Wind generation facility in Alberta operated by TransAlta
Pingston | Hydro | 50 | Hydro facility in British Columbia operated by TransAlta
Joint ventures | Segment | Ownership (per cent) | Description
Skookumchuck | Wind and Solar | 49 | Wind generation facility in Washington operated by Southern Power

X
- Definition The disclosure of interests in joint arrangements. A joint arrangement is an arrangement of which two or more parties have joint control. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 2 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_2_b_ii&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfInterestsInJointArrangementsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of interests in other entities [Abstract] + References No definition available. + Details
Name: | tac_DisclosureofinterestsinotherentitiesAbstract
Namespace Prefix: | tac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration